WO2000017870A1 - Recording and/or reproducing device for disk-like recording medium - Google Patents

Abstract

A recording and/or reproducing device for disk-like recording medium, comprising a plurality of disk trays on which optical disks are placed, a tray stocker in which the disk trays are stored laminatedly, a lifting mechanism to lift the tray stocker, an optical pickup device and a disk drivingly rotating mechanism for recording or reproducing, a tray transport mechanism moving the disk trays between a stock position and a play position, a drive motor driving the transport mechanism and the lifting mechanism, and a switching mechanism selectively feeding a drive force from the drive motor to the transport mechanism or the lifting mechanism, whereby the number of motors as a drive source is reduced so as to reduce the size and weight of the entire device as well as the production cost.

Description

 Specification

 Recording and Z or playback device for disc-shaped recording media

Technical field

 The present invention records or reproduces an information signal using an optical disk such as a CD (compact disk) or a CD-ROM (read-only memory), a magneto-optical disk, or other disk-shaped recording media. With regard to a recording and Z or reproducing apparatus for a disk-shaped recording medium, in particular, an operation of elevating and lowering a storage section for storing a plurality of mounting members on which a disk-shaped recording medium is mounted, An operation of transporting any one of the mounting members at least between the position where it is stored in the storage unit and the position where the mounted disk-shaped recording medium is mounted in the recording and Z or playback unit. The present invention relates to a recording and Z or reproducing apparatus for a disk-shaped recording medium which can be selectively switched between. Background art

 2. Description of the Related Art Conventionally, in general, as an example of a recording and / or reproducing apparatus for a disc-shaped recording medium, a disc for reproducing music, a movie, or the like using a disc-shaped recording medium such as a CD or a CD-ROM is provided. A recording / reproducing device is provided. As such a disk recording / reproducing apparatus, for example, a disk player 1 as shown in FIG. 1 is known.

The disc player 1 stores three disc power cartridges 2 each time, and continuously plays three discs and three discs stored in the disc cartridge 2. It has a function of playing back the tracks recorded on the disk stored in the disk cartridge 2 in an arbitrary order. For this reason, the disc player 1 has a changer device 3 capable of storing three disc force triggers 2 and an arbitrary disc between the changer device 3 and the disc drive. A transport mechanism for selecting and transporting the skew cartridge 2; A recording / reproducing mechanism for recording or reproducing music or the like by chucking the disc force / trigger 2 transported by the transport mechanism is provided.

 The changer device 3 is mounted in the center of the front of the device main body 4, and three force-trigger inlets 5a, 5b, and 5c are provided on the front thereof. These three cartridges (5) to (5c) have a three-layer structure at predetermined intervals in the vertical direction. One side of each cartridge inlet 5a to 5c is individually ejected with a corresponding force cartridge Disk cartridge 2 inserted in the inlet 5a to 5c Eject buttons 6a, 6b, and 6c are provided.

 The front of the changer device 3 can be opened and closed by an open / close lid 7 attached to the front of the device main body 4. On both sides of the opening / closing lid 7, a power button for turning on or off the power, a feed button, a stop button, and many other operation buttons 8 are arranged. Opening the opening / closing lid 7 exposes the front of the changer device 3 and opens each cartridge

By inserting the disk cartridges 2 individually from 5a to 5c, the three disk cartridges 2 are stored and held at predetermined positions, respectively.

 Behind the changer device 3, there is provided a transport mechanism for selectively taking out and transporting any one of the three disk cartridges 2 stored in a predetermined position. I have. In the vicinity of the transport mechanism, a disk, which is a recording medium of a disk cartridge 2 supplied by the transport mechanism and mounted at a predetermined position, is picked up to read a tone signal and read music and the like. There is a disc playback device that plays back discs.

However, in the conventional disk player 1 as described above, any one of the three disk cartridges 2 stored in the three force cartridge storage sections is used. Select skew cartridge 2 Motor to move the take-out holder up and down to take out

A force for holding the taken-out disc force and the force for holding the cartridge 2 to the disc reproducing device, and a disc force supplied to the disc reproducing device. A total of three motors were used as a drive source, including a motor for chucking one trigger 2 and rotating it at a predetermined speed. Therefore, independent motors were used for each operation, such as taking out the disk force and the carriage of the disk cartridge, so that the number of motors used was large and the weight of the entire device was large. There was a problem that it became heavy and uneconomical.

 The same applies to a disc player using a disc-shaped recording medium such as a CD instead of the disc cartridge 2 described above. This type of disc player is provided with a plurality of discs on which a plurality of CDs are individually placed, and a tracing force for holding the plurality of discs. I have. These drive sources include a motor for raising and lowering the tray force and a disk tray held by the tray force protruding forward from the main unit. And a motor for transporting the CD placed on the disc tray to the disc playback unit, and a motor for moving the spindle motor and chucking the CD in this disc playback unit. Morning evenings were used. Therefore, this display also had a three-motor configuration, and the number of motors was large.

 Thus, the inventor of the present patent application has completed a mechanism capable of performing the three types of operations described above with two motors. The mechanism is

The operation of raising and lowering the tray force holding a plurality of disc trays and the carrying operation of taking out and carrying the disk trays held by the tray force one by one are described below. It can be done with one motor It was designed to work. With one motor as a drive source, it is possible to perform an operation of exchanging a disc-shaped recording medium while recording or reproducing the disc-shaped recording medium (hereinafter referred to as “exchange”). As a result of our efforts, we were able to invent an exhaust mechanism having such a function.

 However, in the exchange mechanism, it was necessary to detect whether or not a disk-shaped recording medium was mounted on the disk mounting portion of the disk. Therefore, an optical sensor is arranged and provided inside the front surface of the apparatus main body, and the presence or absence of the disc-shaped recording medium is determined based on whether or not light emitted from the optical sensor is blocked. In addition, since the optical sensor is located near the recording medium insertion port, external light may enter the main body of the apparatus, and the presence or absence of the disk-shaped recording medium may be incorrect due to the influence of the external light. There was a problem that judgment could occur.

 Furthermore, since a wiring board, operation buttons and other electronic components mounted thereon, and other electronic components, a display panel, and the like are arranged in the mounting portion of the optical sensor, they interfere with the optical sensor, and the disk recording / reproducing is performed. There was a problem that the design of the equipment would be restricted.

 Further, in the above-described exchanging mechanism, a power transmission path for directly transmitting a power between a feed gear provided for a rack provided on a disk tray and a motor for driving the feed gear is directly connected. Therefore, the driving force of the motor was directly transmitted from the feed gear to the rack. Therefore, during recording or playback of the disc-shaped recording medium, there is also a problem that the disc may be erroneously moved due to rotation of the motor.

The present invention has been made in view of such a conventional problem, and aims to reduce the number of motors as drive sources to reduce the weight and size of the entire apparatus and to reduce manufacturing costs. That can help An object of the present invention is to provide a recording and Z or reproducing apparatus for recording on a recording medium and to solve the above problems.

 Further, according to the present invention, a photodetector is provided at a substantially central portion of a position where the disc tray stored in the storage portion is stored, and the light of the photodetector is turned on or off by the disc-shaped recording medium being conveyed. By turning it off, it is possible to detect the presence or absence of a disc-shaped recording medium without causing erroneous judgment due to the influence of external light, and to reduce design restrictions and increase design freedom. An object of the present invention is to provide a recording and Z or reproducing apparatus for a disc-shaped recording medium which can be increased, and to solve the above problems.

 In addition, the present invention realizes an exchanging function with a simple structure by separating a power transmission path during recording or reproduction of a disc-shaped recording medium so that a driving force is not transmitted to a feed gear. It is an object of the present invention to provide a recording and Z or reproducing apparatus for a disk-shaped recording medium capable of performing the above-mentioned, and to solve the above-mentioned problems.

Disclosure of the invention

 A recording and / or reproducing apparatus for a disk-shaped recording medium according to the present invention includes: a plurality of mounting members on each of which a disk-shaped recording medium is mounted; and a storage unit in which the mounting members are stacked and stored. An elevating mechanism for elevating the storage unit in a direction substantially parallel to the stacking direction of the mounting members, a recording and / or reproducing unit for recording or reproducing a disk-shaped recording medium, and a plurality of mounting members. At least one of the mounting members is moved between a position where it is stored at least in the storage unit and a position where the disk-shaped recording medium mounted on the mounting member is mounted on the recording and / or reproducing unit. It has a transport mechanism, a drive source for driving the transport mechanism and the elevating mechanism, and a switching mechanism for selectively supplying the driving force from the drive source to the transport mechanism and the elevating mechanism.

Further, recording and Z or reproduction of the disc-shaped recording medium according to the present invention The apparatus includes: a plurality of mounting members on which the disc-shaped recording media are mounted; a storage section in which the mounting members are stacked and stored; and a storage section substantially parallel to the stacking direction of the mounting members. Lifting mechanism for raising and lowering in the direction, a recording and Z or reproducing unit for recording or reproducing a disk-shaped recording medium, and a disk for mounting one of the plurality of mounting members to the mounting member. Where the disc-shaped recording medium can be placed or removed, where it can be stored in the storage section, and where the disc-shaped recording medium placed on the loading member can be mounted on the recording and / or playback section. , A drive source for driving the transport mechanism and the elevating mechanism, and a switching mechanism for selectively supplying a driving force from the drive source to the transport mechanism and the elevating mechanism. And

 In addition, a recording and / or reproducing apparatus for a disk-shaped recording medium according to the present invention includes a plurality of mounting members on which the disk-shaped recording medium is mounted, and a storage in which the mounting members are stacked and stored. And a recording and / or reproducing unit for recording or reproducing a disc-shaped recording medium, and a position and a position where the recording and / or reproducing unit is lifted from the mounting member by the disc-shaped recording medium on the mounting member. A moving mechanism for moving to a position lower than the member, a position where at least one of the plurality of mounting members is stored in the storage section, and a disk mounted on the mounting member. A transport mechanism that moves the recording medium between the position where it is mounted on the recording and Z or playback unit, a drive source that drives this transport mechanism, and when the recording and / or playback unit is moved to a position to be lifted The transmission of the driving force from the driving source And a cross-sectional transmitting mechanism. BRIEF DESCRIPTION OF THE FIGURES

 FIG. 1 is a perspective view showing an example of a conventional recording and / or reproducing apparatus for a disk-shaped recording medium.

FIG. 2 shows the recording and reproducing or reproducing apparatus of the disc-shaped recording medium of the present invention. FIG. 2 is a perspective view showing an example of the arrangement, in which components are disassembled for each block.

 FIG. 3 is a perspective view showing an example of a recording and Z or reproducing apparatus of the disc-shaped recording medium of the present invention, in which each component is disassembled.

 FIG. 4 is a perspective view showing an example of a recording and / or reproducing apparatus for a disk-shaped recording medium according to the present invention, showing a chassis assembly and a stock force assembly.

 FIG. 5 shows an example of a recording and Z or reproducing apparatus for a disk-shaped recording medium according to the present invention, in which a plurality of disk trays are applied to a train at a position where a disk tray is stored. FIG. 4 is a plan view showing a stock state in which is stored.

 FIG. 6 is a sectional view of the recording and Z or X-X line of the reproducing apparatus of the disc-shaped recording medium according to the present invention shown in FIG.

 FIG. 7 is a sectional view taken along the line XY of the recording and Z or reproducing apparatus of the disc-shaped recording medium according to the present invention shown in FIG.

 FIG. 8 is a vertical sectional view showing a state in which the recording and Z or the tray force of the reproducing apparatus of the disk-shaped recording medium according to the present invention is raised to the uppermost stage.

 FIG. 9 shows a state in which the disk tray of the recording and / or reproducing apparatus for the disk-shaped recording medium according to the present invention has been moved to a position where the disk-shaped recording medium can be placed or taken out. FIG.

 FIG. 10 shows that the disk of the recording and Z or reproduction apparatus of the disk-shaped recording medium according to the present invention has a disk-shaped recording medium mounted on the disk-ray. FIG. 5 is a plan view showing a state where the device has been moved to a position where the device is mounted on the device.

FIG. 11 shows a disk recorder of a recording and Z or reproducing apparatus for a disk-shaped recording medium according to the present invention, which is mounted on a disk tray. FIG. 7 is a plan view showing a state where the disc-shaped recording medium has been moved to a position where the disc-shaped recording medium is mounted on the recording and / or Z-playing unit and the recording and / or reproducing unit has been moved to a position where the disc-shaped recording medium is lifted from the mounting member. .

 FIG. 12 shows a state in which the disk of the disk-shaped recording medium according to the present invention can be placed on or taken out of the disk-shaped recording medium during recording or reproduction. It is a top view showing the state where it moved.

 FIG. 13 is a perspective view showing a disk tray of a recording and Z or reproducing apparatus for a disk-shaped recording medium according to the present invention.

 FIG. 14 is an explanatory diagram showing a comparison between a disk tray of a recording and Z or reproducing apparatus for a disk-shaped recording medium according to the present invention and a conventional disk tray.

 FIG. 15 is a perspective view showing a tray stocker of a recording and Z or reproducing apparatus for a disc-shaped recording medium according to the present invention.

 FIG. 16 is a perspective view showing a slide member of a recording and Z or reproducing apparatus for a disk-shaped recording medium according to the present invention.

 FIG. 17 is a plan view showing a power transmission path of a recording and / or reproducing apparatus for a disc-shaped recording medium according to the present invention.

 FIG. 18 is a partially cutaway side view showing a power transmission path of a disk transport system of a recording and Z or reproducing apparatus for a disk-shaped recording medium according to the present invention.

 FIG. 19 is a side view, partly in section, showing a power transmission path of a chucking operation system of a recording and Z or reproducing apparatus for a disc-shaped recording medium according to the present invention.

 FIG. 20 is a side view, partly in section, showing a power transmission path of a slide member drive system of a recording and / or reproducing apparatus for a disk-shaped recording medium according to the present invention.

FIG. 21 shows the recording of a disc-shaped recording medium according to the present invention and FIG. 4 is a cross-sectional view showing a main part of a power transmission path in a disc lay conveyance system of the reproducing apparatus.

 FIG. 22 is a perspective view showing a cross-section of a part of a stepped switching lever and a lifting gear of a recording and Z or reproducing apparatus for a disk-shaped recording medium according to the present invention.

 FIG. 23 is a diagram for explaining the positional relationship between the disk and the photodetector of the recording and Z or reproducing apparatus of the disk-shaped recording medium according to the present invention, and FIG. Figure B shows the position where the disk-shaped recording medium can be placed or removed, Figure C shows the position between Figures A and B, and Figure D shows the storage section Fig.E shows the position between Fig.D and Fig.F, Fig.F shows the position where the recording and Z or playback unit is mounted, and Fig. FIG.

BEST MODE FOR CARRYING OUT THE INVENTION

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 2 to FIG. 23 show an embodiment of the present invention, in which an optical disc such as a CD or a CD-R (rewritable) or an optical disc such as a magneto-optical disc is used as a disc recording medium. A recording / reproducing disk recording / reproducing apparatus showing a specific example of a recording / reproducing apparatus for a disk-shaped recording medium in which information is recorded (written) and Z or reproduced (read) using a disc. It is applied to

As shown in FIGS. 2 to 4, the disk recording / reproducing apparatus 10 according to the embodiment of the present invention includes a chassis 11 composed of a housing having an open upper surface. The chassis 11 is a storage section that can store five optical discs D for both recording and reproduction, which are one specific example of a disk-shaped recording medium, at a time. The disc rotating drive drives the optical disc D supplied from the train force 12 and the optical disc D to rotate at a predetermined speed (for example, constant linear velocity). Drive device 13, an optical pickup device 14 for writing (recording) and / or reading (reproducing) an information signal with respect to an optical disc D that is driven to rotate at a predetermined speed, and controls the operation of these devices. There is a controller and other devices provided.

 As shown in FIG. 3, the chassis 11 is formed of a rectangular casing having an open top surface, and is continuous with a substantially rectangular bottom plate portion 1 1a and a front portion of the bottom plate portion 1 1a. The left and right side plates lie, 1 1d connected to both sides of the front plate 1 1b, the bottom plate 1 1a, and the rear plate 1 1e connected to the rear of the bottom plate 1 1a. have. As shown in Fig. 4, the height of the front plate 11b of this chassis 11 is set lower than that of the side plates llc, lid, etc., as shown in Fig. 4. A tray entrance 15 consisting of an elongated opening is provided.

 As shown in FIGS. 2 to 4, one side plate 11 c of the chassis 11 is provided with a shelf 11 f to which the side mounting base 25 is attached. As shown in FIGS. 3 and 4, two vertical grooves 26, 26 are provided on the other side plate 11d of the chassis 11 at predetermined intervals in the front-rear direction. It is provided to extend. The side mounting base 25 includes a fixed plate portion 25a extending in the front-rear direction and a side wall portion 25b provided continuously on one side in the width direction of the fixed plate portion 25a. Have. The side wall portion 25b of the side mounting base 25 is developed in a direction orthogonal to the surface direction of the fixed plate portion 25a. The side mounting base 25 is detachably fixed to the chassis 11 by a plurality of fixing screws 65.

The side wall 25 b of the side mounting base 25 is provided with two vertical grooves (not shown) at predetermined intervals in the longitudinal direction. The two vertical grooves are formed by two vertical grooves provided on the other side plate 11d while the side mounting base 25 is fixed to one side plate 11c. It is formed in the same size at a position facing the grooves 26, 26. Guided by these four vertical grooves, the tray stocker 12 is moved up and down as described later. The side mounting base 25 is provided with four support shafts 69a to 69d, and a drive module 61 described later is mounted.

 On both sides of the above-mentioned tray entrance 15, a pair of tray guide portions 16, 16 projecting forward from the front plate portion 11 b and continuously extending to the rear inside. Is provided. The pair of guard portions 16 and 16 have a role of supporting, from below, both side portions in a direction intersecting the transport direction of the disk tray 17 as a mounting member. A pair of guide guides 16, 16 are provided with guide rails 16 a, 16 a extending in the tray transport direction, which is the front-rear direction of the chassis 11, so as to protrude upward. ing.

 As shown in FIGS. 2 and 6, etc., a front mounting base 18 is fixed to the front upper portion of the chassis 11 in association with the pair of tray guides 16 and 16. It is tightened and fixed with screws 19. The front mounting base 18 is a block-shaped member mounted so as to straddle the chassis 11 in the lateral direction. A pair of tray holding parts 18 a, 1, which are installed so as to be opposed to a pair of tray guide parts 16, 16 in the vertical direction, are provided at a lower part of both ends in the longitudinal direction of the front mounting base 18. 8 b is provided.

When ejecting the disc tray 17, the tray guides 16, 16, which are paired up and down, and the tray holding parts 18 a, 18 b, both sides of the disc tray 17. Is supported to be sandwiched. As a result, as shown in FIGS. 9 and 12, the front portion of the disc tray 17 is projected forward of the front plate portion 11b, and the disc tray 17 is connected to the optical disc D. It is held in a cantilevered position at the eject position where it can be placed or taken out. As shown in FIGS. 6 and 11, etc., one of the tray holding portions 18a of the front mounting base 18 has a front detection arm 20 for detecting the entry and exit of the disk tray 17. And the rear detection arm 21 are mounted to be able to swing up and down. Each of the detection arms 20 and 21 has an input portion projecting on the movement trajectory of the disk tray 17, and the detection switches 22 a and 22 b are provided on the upper side opposite to the input portion. Are arranged respectively. These detection arms 20 and 21 are pushed up by the disk tray 17 to turn on (or off) the corresponding detection switches 22a and 22b, so that the switches are mounted. It is possible to detect that the disk 17 passes through the current position.

 Further, as shown in FIG. 4, a front feed gear 23 is rotatably attached to one of the guide guides 16. A rack described later provided on the disc tray 17 is combined with the front feed gear 23 at the time of an eject. Due to the torque of this front feed gear 23

The disk tray 17 is moved forward or backward according to the direction of rotation.

 In addition, as shown in FIGS. 2 and 5, etc., the front of the front plate 1 lb and the inside of the pair of tray guides 16 and 16 are used to open and close the tray entrance 15. An opening / closing lid 27 is attached. The opening / closing lid 27 is formed of a horizontally elongated plate, and shaft portions 27a and 27a protruding outward in the longitudinal direction are provided at the lower ends of both ends. In order to rotatably support these shafts 27a, 27a, a pair of bearings 28a, 28b are provided inside the pair of tray guides 16, 16. Have been. The open / close lid 2 2 is rotatably supported on both ends of the front plate 11b by the bearings 28a and 28b.

A coil spring 29 is attached to one shaft portion 27 a of the opening / closing lid 27. The open / close lid 27 is attached by the spring force of the coil spring 29. The tray entrance 15 is opened and closed by the opening / closing lid 27. As shown in FIG. 13, the disc tray 17 which is put in and out of the tray entrance 15 is made of a plate-like member larger than the optical disc D used.

 In the center of the disk 17, for example, a large-diameter recess 30 a on which an optical disc D having a diameter of 12 cm is placed and a small-diameter recess on which an optical disc D having an diameter of 8 cm is placed. A disk mounting portion 30 having 3 Ob is provided. At the center of the front part of the disc 17, trapezoidal central projections 17 a are provided by providing square notches 31 a and 31 b on both sides. . Disc Ray

On the opposite side of the central projection 17a of 17 is provided a pair of supported parts 17b, 17c that project outward and parallel to each other with the disk mounting part 30 as the center. ing.

 The disk 17 is provided with a slit-shaped opening hole 34 extending from the center to the rear of the disk mounting portion 30. The turntable 33 of the disk rotation driving device 13 is inserted into the opening hole 34. In the opening hole 34, at a position where the optical disk D is stored in the disk tray 17 and the tray force 12, the optical disk D is placed on the disk mounting portion 30. It also serves as a light path for the photodetector 48 that detects whether or not there is no light.

 An escape portion 35 is formed between the rear portion of the disc mounting portion 30 of the disc tray 17 and a portion surrounded by a pair of supported portions 17b and 17c connected to both sides thereof. Is provided. The escape portion 35 has a role of avoiding contact with a cam member, a gear, and the like described later. Further, the escape portion 35 is formed so that when the two discs 17 are arranged in the vertical direction, the central projecting portion 17a of the other disc 17 can enter. It also has the role of shortening the length of.

That is, as shown in FIG. 14, the escape of one disk The central projection 17a of the other disk tray 17 can be inserted into the portion 35. By arranging the two disk trays 17 in the vertical direction in this way, the conventional disk trays 37 with no notch on both sides at the front can be arranged vertically. In comparison, the overall length in the vertical direction can be reduced by the distance S. As a result, the stock position, which is the position accommodated by the disk tray 17 and the optical disk D, which is placed on the disk 17 By shortening the distance from the play position, which is the position to be attached to the optical pickup device 14, the depth of the device can be shortened, and the size of the entire device can be reduced.

 Further, as shown in FIG. 13, a portion in front of the disk mounting portion 30 of the disk tray 17 through which the detection light of the photodetector 48 passes, that is, the disk mounting portion 3 A detection hole through which light used for disc detection by the photodetector 48 passes is located on the trajectory of the disc tray 17 in the transport direction T passing through or near the center point C of 0. Is provided. The detection hole 36 determines whether or not the optical disk D is mounted on the disk mounting portion 30 when the disk 17 moves between the stock position and the play position. O used to detect

 In this embodiment, the detection hole 36 is provided in the small-diameter concave portion 3 Ob of the disc mounting portion 30. However, the detection hole 36 can be provided in the large-diameter concave portion 30a as long as it is on the locus of the detection light. The size of the detection hole 36 is set to an appropriate size in consideration of the moving speed of the disk 17 and the light detection sensitivity of the photodetector 48.

Guide grooves 38a and 38b are provided on both side edges of the disc tray 17 in a direction intersecting the transport direction T so as to open to the lower surface side and extend straight in the front-rear direction. I have. These guide grooves 38a and 38b restrict the lateral movement of the disc tray 17. It has the function of moving the tray entrance and exit, and the disk tray 17 linearly. At the time of ejection, the guide rails 16a and 16a provided on the pair of tray guides 16 and 16 of the chassis 11 can slide in the guide grooves 38a and 38b, respectively. O engaged

 Further, a rack 39 formed from the front end and reaching the rear end of the supported portion 17b is provided on one side edge of the disk tray 17. In the vicinity of the rear end of the supported portion 17b, there is provided a V-shaped concave portion 41 as a positioning portion which is positioned by a slider 40 as a switching slider. Further, in the vicinity of the supported portion 17b, there is provided a lock hole 42, which is an engaged portion for locking the disk tray 17 to prevent movement.

 The five discs 1 having the above configuration are stacked so that the information recording surfaces, which are the main surfaces of the optical disc D mounted on the disk mounting portion 30, are substantially parallel to each other. It is housed in the tray power 12. As shown in FIG. 15, the tray toe force 12 has a base plate 12 a slightly wider than the disk tray 17 and both sides of the base plate 12 a in the width direction. It has left and right side plates 12b and 12c attached so as to start up. As shown in FIG. 3, the left and right side plates 12b and 12c are fixed by fixing means such as fixing screws 43a and are integrally formed with the base plate 12a.

As shown in Fig. 3 and Fig. 15, inside the side plates 1 2b and 12 c of the tray force 12, there are five shelves 1 2 with a predetermined gap in the vertical direction. d and 12d are provided so as to be parallel to each other. The uppermost shelf piece 12d serves to prevent the disk tray 17 housed in the uppermost stage from being pulled out. The lower and upper shelves between the upper and lower shelves 1 2 d, 1 2 d and the bottom shelves In between, tray storage sections are set. The left and right side edges of the disc tray 17 are placed between these shelf pieces or between the shelf piece and the bottom face, and the disc trays 17 are detachably held in the respective tray storage sections.

 In addition, a middle feed gear 44, which is a feed gear that mates with the rack 39 of the disk tray 17, is inserted into one of the side plates 12b of the tray toe force 12. Opening windows 45 are provided. The opening windows 45 are respectively opened in five tray storage sections, and have a five-layer structure. By inserting the middle feed gear 44 into the tray housing from the corresponding hole in accordance with the position where the tray force 12 is raised and lowered, the disk held in the tray housing can be used. Combines with rack 39 on ray 17.

 As shown in FIG. 3 and FIG. 5, a stop plate 46 is attached to the front of the straightening force 12 by fixing means such as fixing screws 43b. The stopper plate 46 restricts the movement of the tray stop force 12 to the front side. A top plate 47 is stretched between the left and right side plates 12b and 12c. The upper plate 47 is fixedly fastened to the upper portions of the side plates 12b and 12c by a plurality of fixing screws 43c.

 Furthermore, as shown in Fig. 15, the base plate 1

A light transmission hole 49 for allowing the light of the photodetector 48 to pass is provided substantially in the center of 2a. As shown in FIG. 7, a sensor holding portion 11 h provided on the bottom plate 11 a of the chassis 11 is inserted into the light passage hole 49. Further, on both side surfaces of the base plate 12a, as shown in FIG. 15, two screw holes 51 are provided at predetermined intervals in the front-rear direction. The screw portion of the guide bin 50 is screwed into each screw hole 51. As a result, a total of four guide bins 50 are provided on each of the left and right sides of the base plate 12a, for a total of four guide bins 50. It is mounted on a slide member 53 that is a slider that drives the up-and-down movement of the tray-to-tension force 12, which is a storage part, with a tray-to-tension force of 12 or so. As shown in FIG. 16, the slide member 53 has a lower plate portion slightly wider than the tray holder 12.

53a, and left and right side plate portions 53b, 53c formed so as to rise upward continuously to the left and right of the lower surface plate portion 53a. Guide holes 54, 55 for moving the slide member 53 in the front-rear direction are provided in the lower surface plate portion 53a of the slide member 53. Of the two guide holes, one guide hole 54 is located at the approximate center of the front of the lower plate 53a, and the other guide hole 55 is located at the rear from one guide hole 54. It is arranged in the wakasen offset on the main side.

 At the front of these guide holes 54, 55, wide-open portions 54a, 55a for inserting a head for retaining are provided. As shown in Fig. 5 etc., the sensor holding part 11h provided on the bottom plate part 11a of the chassis 11 is inserted into one guide hole 54, and the same is inserted into the other guide hole 55. The guide projection 11i provided on the bottom plate 11a is inserted. Guided by the sensor holding portion 1 lh and the guide protrusion 11 i, the slide member 53 is supported so as to be capable of sliding in the front-rear direction with respect to the chassis 11.

Further, as shown in FIG. 16, a cutout extending in the front-rear direction is provided between the guide hole 55 and one side plate 53 b at the rear of the bottom plate 11 a of the chassis 11. A notch 53 d is provided. On one side edge of the cutout portion 53d, a rack 57 is provided in which teeth meshing with a drive gear 112 described later are arranged in the front-rear direction. A notch 53 e is provided between the guide hole 55 and the other side plate 53 c to avoid contact with a cam member and the like described later. The left and right side plate portions 53b, 53c of the slide member 53 are provided with two elevating cam grooves 58, 58, respectively, with a predetermined gap in the front-rear direction. . The four elevating cam grooves 58 are formed of step-like long holes having the same shape and size, and are arranged so as to face each other between the left and right side plates 53b and 53c. Guide bins 50 screwed and fixed to the tracing force 12 are slidably passed through these lifting / lowering force grooves 58.

 The guide bin 50 is formed of a screw member having a stepped shaft portion, and the shaft portion slides in the elevating cam groove 58. A guide bin 50 that penetrates a vertical groove provided in the side mounting base 25 is inserted into the elevating cam grooves 58, 58 in front of and behind the one side plate 53b. The vertical cam grooves 58 and 58 in front of and behind the other side plate portion 53 c are provided with vertical grooves 26 and 26 provided in the other side plate portion 11 d of the chassis 11. Dobin 50 is inserted.

 Each elevating cam groove 58 includes five horizontal portions 58a provided at predetermined intervals in the vertical direction and four inclined portions 58b that obliquely communicate the upper and lower horizontal portions 58a. Have. The five horizontal portions 58 a are formed to have the same height in correspondence with the five tray storage portions having the tray force 12. A tray entrance 15 is formed corresponding to the height of the tray force 12.

 That is, when the four guide bins 50 passed through the respective lifting cam grooves 58 are located in the lowermost horizontal portion 58a of the first stage, the uppermost stage of the tray toe force 12 The tray storage section is set to be approximately the same height as the tray entrance 15. Therefore, when the four guide bins 50 move to the uppermost horizontal portion 58a of the fifth stage, the trace force 12 is lifted by a predetermined amount and the first lower stage is moved to the first stage. The tray storage section will be aligned with the tray entrance 15.

The raising and lowering operation of the tray force 12 is performed by the chassis 11. -Two vertical grooves 26, 26 provided in the side plate 1 1 d, two vertical grooves provided in the side mounting base 25, and four lifting cams provided in the slide member 53. This is realized by synergy with the grooves 58, 58. That is, the three-way force is supported by the four vertical grooves so as to be able to move up and down only in the vertical direction with respect to the chassis 11, and the slide member 53 is supported by the chassis 11 with respect to the chassis 11. It is supported so that it can move only in the front-back direction. Therefore, by moving the slide member 53 in the front-rear direction, it is possible to move the slide member 53 in the front-rear direction so that the vertical mechanism 26, 26, the guide pins 50, 50, and the lift cam grooves 58, 58 are used as a storage mechanism. Through the operation of the lifting mechanism, the tray force 12 is moved up and down.

 In order to allow the disk tray 17 housed in such a tray storage force 12 to enter and exit the tray entrance 15, the side mounting base 25 has a disk tray 1. A tray transport mechanism 60 which is a transport mechanism for moving the tray 7 is provided. This tray transport mechanism 60

The optical disc D can be placed on the disc tray 17 or the eject position where the optical disc D can be taken out, and the disc tray 17 can be stored in the disc tray 12. The disk 17 is moved between a stock position where the recording is performed and a play position where the optical disc D is mounted on the recording and / or reproducing unit.

 The tray transport mechanism 60 constituting the disk transport system has a configuration as shown in FIGS. That is, the tray transport mechanism 60 includes a drive motor 61 as a drive source, a rubber-belt type deceleration mechanism 62 that reduces the rotation speed of the drive motor 61 and increases the transmission torque, and It has three feed gears 23, 44, 63, etc., which are rotationally driven by the torque transmitted from the G-type reduction mechanism 62.

The drive motor 61 of the tray transport mechanism 60 is shown in FIG. As shown, it is fixed to the side mounting base 25. The rotation shaft 6 la of the drive motor 61 protrudes upward through the fixed plate portion 25 a, and a drive pulley 67 is attached to the rotation shaft 61 a. As shown in FIG. 18, the drive burry 67 has three belt hook portions provided at predetermined intervals in the axial direction. Rubber belts 68a, 68b, 68c, which are endless power transmission media, are hung on the belt hooks of the drive pulley 67.

 The other end of the first rubber belt 68 a hung on the center belt hanger of the drive pulley 67 extends to the front side of the chassis 11 and is hung on the front driven pulley 70 a. Have been. The other end of the second rubber belt 68b hung on the lower belt hooking portion of the drive pulley 67 extends to the rear side of the chassis 11 and is a middle driven pulley 72a. It is hung on. Further, the other end of the third rubber belt 68 c hung on the upper belt hook portion of the drive bury 67 extends to the rear side of the chassis 11 and hangs on the rear driven pulley 75 a. Have been.

 As shown in FIGS. 5, 9, and 10, the front driven bulge 70a is rotatably supported by a support shaft 69a erected on the front of the side mounting base 25. I have. The front driven pulley 70a is provided with a front output gear 70b on the body, and the front output gear 70b is connected to the large diameter portion 71a of the front intermediate gear 71. Have been combined. Front middle gear

Reference numeral 71 denotes a small-diameter portion 71b provided integrally with the large-diameter portion 71a, and is rotatably supported by a support shaft 69b provided upright on the front side of the support shaft 69a. The front feed gear 23 described above is combined with the small diameter portion 71b of the front intermediate gear 71.

The middle driven bury 72 a is rotatably supported by a support shaft 69 c erected in the middle of the side mounting base 25. A swing arm 73, which is also an arm part rotatably supported by a support shaft 69c, is disposed below the middle driven pulley 2a. This swing On the arm 73, a central output gear 72b provided integrally with the central driven pulley 72a is mounted.

 The large diameter portion 74a of the middle intermediate gear 74 is combined with the middle output gear 72b, and the small diameter portion 74b is provided on the large diameter portion 74a. The small-diameter portion 74 b of the middle intermediate gear 7 is combined with the above-described middle feed gear 44. As shown in FIG. 17 and FIG. 18, the middle feed gear 44 and the middle intermediate gear 74 are formed by a shaft part 73c standing upright on one arm piece 73a of the swing arm 73. , 73d are rotatably supported respectively. Therefore, the middle feed gear 44 and the middle intermediate gear 74 are configured to rotate around the middle output gear 72 b by the swing operation of the swing arm 73.

 When the swing arm 73 rotates clockwise in FIG. 17, the swinging arm 73 enters the tray housing portion through the opening window 45 provided in the tray force 12, and the middle feed gear 44. As a result, when the disk tray 17 is stored in the corresponding tray storage unit, the central feed gear 44 is combined with the rack 39 of the disk tray 17. . The other arm piece 73b of the swing arm 73 is provided with an operation pin 73e projecting downward.

 The rear driven bully 75 a is rotatably supported by a support shaft 69 c erected at the rear of the side mounting base 25. The rear driven pulley 75a is integrally provided with a rear output gear 75b. The large diameter portion 76a of the rear intermediate gear 76 is combined with the rear output gear 75b. The large diameter portion 76a of the rear intermediate gear 76 is integrally provided with a small diameter portion 76b.

The rear intermediate gear 76 is rotatably supported by a support shaft 77 a erected on the chassis 11. Below the rear intermediate gear 76, a stepped switching lever 78 that is also rotatably supported on a support shaft 77a is disposed. On top of this stepped switching lever 7 8 The small diameter portion Ί 6 b of the intermediate gear 76 is placed.

 As shown in Fig. 22, the stepped switching lever 78 is

78 a and two arm portions 78 b and 78 c protruding from the cylindrical shaft portion 78 a. The first arm portion 78b is provided with an operation pin 78d projecting upward, and the second arm portion 78c is provided with an inclined surface 78e inclined in the circumferential direction. . An upper surface portion 8f and a lower surface portion 78g are set on both sides of the inclined surface 78e in the direction of inclination, whereby a step having a predetermined height is provided. The inclined surface 78 e is provided with a long hole 79 extending in the inclined direction and reaching the upper surface portion 78 f and the lower surface portion 78 g.

 The long hole 79 of the stepped switching lever 78 has an arc shape centered on the axis of the cylindrical portion 78a. As shown in FIG. 21, a support shaft 77 b erected on the chassis 11 is slidably inserted into the elongated hole 79. An elevating gear 80 as a moving gear is rotatably supported on the support shaft 77 b. The lifting gear 80 is urged toward the second arm portion 78c by the spring force of the coil spring 81a. The elevating gear 80 includes a large-diameter portion 80 a fitted to the small-diameter portion 76 b of the rear intermediate gear 76, and a small-diameter portion integrally provided below the large-diameter portion 80 a.

8 0 b.

 The lifting gear 80 is moved up and down along the inclined surface 78 e against the urging force of the coil spring 81 a by the rotation of the stepped switching lever 78. As a result, the elevating gear 80 can take a first position moved on the upper surface portion 78ί and a second position moved on the lower surface portion 78g. Before and after this elevating operation, the large diameter portion 80a of the elevating gear 80 is always joined to the small diameter portion 76b of the rear intermediate gear 76, as shown in FIGS.

As shown in FIG. 18, a movable gear 82 is detachably connected to the large diameter portion 80a of the elevating gear 80. The movable gear 82 is a shear It is rotatably supported by a support shaft Ί7c erected on the chassis 11 and is urged toward the bottom plate portion 11a of the chassis 11 by the spring force of a coil spring 81b. Below the movable gear 82, an operation arm 83a provided on a swing frame 83 described later is provided opposite to the movable gear 82. The vertical movement of the operating arm 83a causes the movable gear 82 to move upward and downward against the urging force of the coil spring 81b.

 Before and after this elevating operation, the movable gear 82 engages with the large diameter portion 80a when the elevating gear 80 moves upward and is at the first position. When the lifting gear 80 moves downward and is at the second position, the engagement with the large diameter portion 80a is released. A rear feed gear 63, which is an additional feed gear, is combined with the movable gear 82. The rear feed gear 6 3 is rotatably supported by the side mounting base 25, and is formed to be thick so as to always engage with the movable gear 82 before and after the vertical movement of the movable gear 82. . The other ends of the two coil springs 81a and 81b are seated on a spring receiving piece 25a provided on the side mounting base 25.

 In FIG. 5, FIG. 9 and FIG. 10, when the drive motor 61 rotates clockwise as shown by the solid arrow, three rubber belts 68 a to 6 The three driven pulleys Ί 0 a, 72 a, and 75 a are both driven to rotate clockwise via 8 c. This

On the other hand, in the front transfer section to which torque is transmitted from the front driven bury 70a, the front feed gear 23 is rotationally driven in the clockwise direction via the output gear 70b and the intermediate gear 71. Also, in the central transporting unit where the torque is transmitted from the central driven pulley # 2a, the central feed gear 44 is rotationally driven clockwise via the output gear 72b and the intermediate gear 74. Further, in the rear conveyance section where the torque is transmitted from the rear driven pulley 75a, the output gear 75b, the intermediate gear 76, and the elevating gear 80 (the large diameter section 80a and the small diameter section 80b) And the rear feed gear 6 3 through the movable gear 8 2 are the same It is rotated clockwise.

 At this time, the front feed gear 23 of the front transfer part and the middle feed gear 44 of the middle transfer part are directly connected to the output gear 70b and the output gear 72, respectively. 4 4 is always driven to rotate. On the other hand, in the rear transport section, the lifting gear 80 and the movable gear 82 are configured so as to be intermittent with respect to engagement, so that the rear feed gear 63 is driven to rotate depending on the engagement. Or drive is stopped.

 Further, the front feed gear 23 and the rear feed gear 63 are supported at predetermined positions on the chassis 11 and located on the movement locus of the rack 39 provided on the disk tray 17. When the disk tray 17 moves to that position, it is always joined to the rack 39. On the other hand, since the middle feed gear 44 is supported by the swing arm 73, it projects on the movement locus of the rack 39 in response to the swing movement of the swing arm 73, and only at that time the middle The feed gear 44 is engaged with the rack 39. Behind the tray force 12 for accommodating a plurality of disc trays 17 to be taken in and out by the tray transport mechanism 60 having such a configuration, the tray 11 swings with respect to the chassis 11. An oscillating frame 83 movably supported is provided.

 As shown in FIGS. 2 to 5, the swing frame 83 is a substantially rectangular frame. As shown in FIG. 6, FIG. 8, and FIG. 11, an operating arm 83a is provided at a lower front portion of one side surface of the swing frame 83 so as to protrude forward. A rotating shaft portion 83 b serving as a center of rotation with respect to the chassis 11 is provided at the rear upper portion on both sides of the swing frame 83. The rotating shaft 8 3 b is

It is rotatably supported by the bearing support provided in 11. Therefore, the swing frame 83 is configured to be tiltable forward and downward with respect to the chassis 11. Further, as shown in FIG. 4, a lock pin 117 which is an engaging projection projecting upward is provided on the upper surface of the swing frame 83. The locking pin 117 is fitted into a locking hole 42 as an engaged portion of the disk 17 at the time of chucking. As a result, the disk tray 17 can be locked, and the movement of the disk tray 17 can be prevented. In contrast to this embodiment, the engaging projection and the engaged portion are provided with a locking pin on the disc tray 17 and a locking hole on the swing frame 83. It can also be.

 In order to secure the tilting motion of the swing frame 83, as shown in FIG. 3 and the like, the bottom plate 11a of the chassis 11 has an opening window 8 slightly larger than the swing frame 83. 4 are provided. The lower front portion of the swing frame 83 protrudes downward from the opening window 84 only when the front frame is lowered, that is, before the chucking. A sub-chassis 86 is elastically supported inside the oscillating frame 83 via four damper members 85. The sub-chassis 86 is provided with a disk rotation drive device 13 and an optical pickup device 14 o

The damper member 85 is formed of a hollow gourd-shaped cylinder formed of a rubber-like elastic body. By elastically supporting the sub-chassis 86 with the four damper members 85, the vibration of the chassis 11 is prevented from being transmitted to the disk rotation drive device 13 and the like. The disk rotation drive device 13 has a spindle motor 87 fixed to the front of the sub-chassis 86, and turns to the end of the rotation shaft set upward of the spindle motor 87. Table 33 is installed. The turntable 33 is set so as to be substantially parallel to the upper surface of the sub-chassis 86. In the center of the upper surface of the turntable 33, a centering guide to be fitted into the center hole d of the optical disc D is provided. As shown in Fig. 5, etc., behind the spindle motor 87, both sides are guided by an optical pick-up device 14 with one guide shaft 88a and one guide plate 88b. It is supported so that it can move forward and backward. The guide shaft 88a and the guide plate 88b are fixed to the sub-chassis 86 so as to be parallel to each other. A carriage 14a is slidably supported on the guide shaft 88a and the guide plate 88b, and the carriage 14a slides through the carriage 14a. The optical pickup device 14 is allowed to approach or move away from the evening table 33.

 An optical head 14c having an objective lens 14b installed upward is attached to the upper part of the carriage 14a of the optical pickup device 14. The laser light emitted from the objective lens 14b is applied to the information recording surface of the optical disk D, which is chucked on the turntable 33, and the laser light reflected from the information recording surface is reflected by the objective lens. The light enters the optical head 14 c via the 14 b. The center of each of the objective lens 14 b and the turntable 33 is set on the movement locus of the center of the disc 17, and the objective lens 1 is located at the rear of the optical disc D mounted on the turntable 33. 4b can be moved in the disk radius direction.

Above the turntable 33, as shown in FIGS. 2 and 12, etc., a disk clamper 8 which holds the optical disk D between the turntable 33 and the one in the rotation direction. 9 are located. The disc clamper 89 is held by the rear mounting base 90 arranged so as to cover the upper part of the swing frame 83 with a certain amount of play in the vertical and horizontal directions and the front and rear directions. Have been. The rear mounting base 90 is mounted at the rear of the chassis 11 so as to bridge between the left and right side plates 11c and 11d, and is tightened and fixed with a plurality of fixing screws 19a. ing. At the approximate center of this rear mounting base 90, there is a disc clamper.

8 9 is installed. The disc clamper 89 has a cylindrical shaft portion vertically extending through a hole provided in the rear mounting base 90, a flange-shaped holding plate provided at a lower end portion of the cylindrical shaft portion, and a cylindrical cylinder. A mounting plate removably mounted on the upper end of the shaft. A magnet for chucking is housed inside the cylindrical shaft portion, and the disc clamper 89 is attracted to the turntable 33 by the attraction force of the magnet. As a result, the optical disc D mounted on the turntable 33 is sandwiched between the disc clamper 89 and the turntable 33 from above and below, and is rotationally driven in this chucking state.

 In addition, as shown in FIG. 5, etc., on one side of the rear mounting base 90, is the disk tray 17 moved to a play position where recording and / or reproduction of an information signal is performed? A front detection arm 91 and a rear detection arm 92 for detecting the presence or absence are mounted so as to be vertically swingable. Each of the detection arms 91 and 92 has input portions 91a and 92a protruding on the movement locus of the disc tray 17 and these input portions.

Detection switches 22c and 22d are arranged on opposite sides of 91a and 92a, respectively. These detection arms 91 and 92 are pushed up by the disc tray 17 to turn on (or off) the corresponding detection switches 22c and 22d, thereby mounting the switches. It is possible to detect that the disk 17 has passed the set position.

 In addition, the inner surface of the one side plate 1 Id of the chassis 11 and the inner surface of the side mounting base 25 are mounted on the inner surface of the tray 12 from behind with a straight-through force 12.

—The rear guide rails 93 a and 93 b are provided to support both sides of the disk 17 transported to the cable 33 side. The rear guide rails 93a, 93b are paired with a pair of tray guides 16,16. It is set to the same height as the tray entrance 15 surrounded by the tray holder 18a and 18b.

 As shown in FIG. 5 and FIG. 6, etc., a cam pin 94 projecting forward is provided at the upper center of the front surface of the swing frame 83. The tip of the force pin 94 is formed in a spherical shape to reduce sliding frictional resistance. The cam pin 94 is slidably engaged with a cam groove 96 of a cam member 95 arranged in front of the cam pin 94.

 As shown in FIGS. 4 and 19, the cam member 95 is formed of a rotating body having a spirally extending cam groove 96 on the outer peripheral surface. A cam gear 95a is provided at the lower end of the cam member 95, and an end cam is provided on the upper surface.

9 5b is provided. The cam groove 96 of the force member 95 has an inclined surface 96a inclined at a predetermined angle, and an upper horizontal portion 96b and a lower horizontal portion continuous on both sides of the inclined portion 96a. It has a horizontal portion 96c.

 The inclined portion 96a of the cam groove 96 is formed as a long groove that descends to the right. An upper horizontal portion 96b is formed at a high position on the left side of the inclined portion 96a. A lower horizontal part 96c is formed at a lower position on the right side of a. The upper horizontal portion 96b of the cam groove 96 is set at the same height position as the horizontal state of the swing frame 83. The horizontal state of the oscillating frame 83 is as shown in Figs. 11 and 12.

The optical disc D on the disc tray 17 is set to be lifted by the evening table 33 of the optical pick-up device 14. The oscillating frame 83 is moved up and down by a cam member 95, and as shown in FIGS. 6 and 8, is moved downward by the height difference between the upper horizontal portion 96b and the lower horizontal portion 96. To be in a state of falling forward. The tilted state of the swing frame 83 forwardly descending is the position where the turntable 33 has descended from the disk tray 17. The force member 9 5 for rotating the swing frame 83 is a cam gear 9 It is rotatably supported on a support shaft 77d with 5a positioned below. The support shaft 77 d is erected on the bottom plate 11 a of the chassis 11 as shown in FIG.

 Further, as shown in FIGS. 17 and 19, an output gear 98 located at the end of the power transmission path in the cam drive mechanism 97 of the chucking operation system is provided on the cam gear 95a of the cam member 95. Have been combined. The output gear 98 is connected to the small diameter portion 99a of the intermediate gear 99, and the small diameter portion 99a is provided with a large diameter portion 99b in the body. A drive gear 100a is combined with the large-diameter portion 99b of the intermediate gear 99.

 A driven pulley 100b is provided on the drive gear 100a, and one end of an endless rubber belt 68d is hung on the driven pulley 100b. The other end of the rubber belt 68d extends rearward and is hung on a drive pulley 101a, and the drive bulge 101a is fixed to the rotating shaft of the cam drive unit 101. Have been. The cam drive motor 101 is fixed inside the side plate 11 d of the chassis 11. The drive gear 100a, the intermediate gear 99, and the output gear 98 are rotatably supported by support shafts erected on the bottom plate 11a.

 As shown in FIG. 4 and the like, the end face cam 9 provided on the upper surface of the cam member 95 is provided.

Reference numeral 5b denotes an annular groove displaced to one side about the rotation center of the cam member 95. A stroke of a predetermined distance is set by the amount of displacement of the end cam 95b in the radial direction. As shown in FIG. 20, a convex portion 40a projecting from the back surface of the slider 40 is slidably engaged with the end surface cam 95b.

As shown in FIGS. 3 to 5, the slider 40 is formed of a plate-like member that is long in the horizontal direction, and has two long holes 40b, 4 extending in the horizontal direction at a predetermined interval in the longitudinal direction. 0 c is provided. This slider One long hole 40b of 40 is opposed to the top of a support shaft 77d supporting the cam member 95, and is moved in the lateral direction by a mounting screw 102a screwed to this top. The falling out is prevented while guiding. The other elongated hole 40 c of the slider 40 extends above the support shaft 77 e erected on the chassis 11 and is screwed to the top of the support shaft 77 e. The mounting screw 102b also guides lateral movement and prevents falling off.

 An arm piece 40d is provided on the side mounting base 25 of the slider 40. At the tip of the arm piece 40d, two operating rings 103a, 103b and a positioning piece 104, which are annular, are provided. As shown in FIG. 17, the operation pin 73 e of the swing arm 73 described above is loosely inserted into one operation ring 103 a of the slider 40, and the other operation ring 10 The operation pin 78d of the stepped switching lever 78 is loosely inserted into 3b. The positioning piece 104 of the slider 40 positions the disk 17 at the stock position. By engaging the positioning pieces 104 with the V-shaped recesses 41 of the disk 17, the disk tray 17 is positioned at the stock position and moves in the front-back direction. Is limited.

 As shown in FIGS. 3 to 5, an elevating shutter 105 is supported on the front side of the slider 40 so as to be able to ascend and descend. In the elevating shutter 105, the optical disk D mounted on the disk mounting part 30 of the disk tray 17 moves to the disk mounting part side due to disturbance such as vibration. This is to prevent Normally, the upper part of the elevating shutter 105 projects above the upper end surface of the cam member 95. When the disc tray 17 is transported to the disc loading section side, the lifting and lowering shutter 105 is lowered by a predetermined amount so that the disc 17 can pass through. ing.

For this reason, a pair of left and right inclined Lead holes 106 and 106 are provided. A pair of guide bins 107 and 107 provided on the slider 40 are slidably engaged with the pair of guide holes 106 and 106, respectively. As shown in FIG. 3, a spring 108 extends between the slider 40 and the elevating shutter 105, and the elevating shutter is moved by the spring force of the spring 108. Evening 1

05 is constantly biased to the side mounting base 25 side.

 In order to limit the horizontal movement of the lifting shutter 105, a stopper 109 is set up on the bottom plate 11a of the chassis 11. The stopper 109 limits the horizontal movement of the lifting shutter 105. Further, by guiding the pair of guide bins 107 and 107 with the pair of guide holes 106 and 106, the elevating shutter 105 is pushed down as a whole and is moved downward. Move almost parallel to.

 A Geneva pin gear 110, which constitutes one of the Geneva gears, is rotatably supported on a support shaft 77e that supports the side mounting base 25 side of the slider 40. As shown in FIGS. 20 and 21, the geneva pin gear 110 is provided with a cam convex 110 a formed in a fan shape and provided radially outside of the cam convex 110 a. It has a cam pin 110b and a switch operating portion 110c formed by expanding the cam convex portion 110a downward.

A Geneva groove gear 111 is slidably provided in the vicinity of the Geneva pin gear 110, and the two gears 110, 111 form a pair to form a Geneva gear. As shown in FIG. 17 and FIG. 20, the Geneva groove gear 1 1 1 has a cross-shaped cam groove 1 1 1 into which the cam pin 1 10 b of the Geneva pin gear 1 10 is slidably engaged. a, a stopper curved surface 11 lb that slides on the outer peripheral surface of the force projection 110 a of the Geneva pin gear 110 to prevent the transmission of rotational force, and a gear portion formed integrally therewith. 1 1 1 c. The large-diameter portion 112a of the drive gear 112 is combined with the gear portion 111c of the Geneva groove gear 111. The large-diameter portion 112a is integrally provided with a small-diameter portion 112b, and the small-diameter portion 112b is combined with the rack 57 of the slide member 53 described above. I have. As shown in FIG. 17, the Geneva groove gear 1 11 and the drive gear 1 1 2 are rotatably supported by support shafts 77 g and 77 h erected on the chassis 11, respectively. I have.

 Further, as shown in FIG. 20, a coil spring 113 is loosely fitted to the center of the geneva pin gear 110, and one end of the coil spring 113 is connected to the sleeve 114. Seated. The sleeve 114 is slidably fitted to the central cylindrical shaft of the Geneva pin gear 110, and the sleeve 114 is pressed against the lower surface of the slider 40. Excessive load is applied between the Geneva pin gear 1 10 and the Geneva groove gear 1 1 1 by releasing the cam pin 1 1 Ob against the cam groove 1 1 1 a force against the urging force of this coil spring 1 1 3 To prevent damage such as breakage caused by the load.

 As shown in FIG. 2, a middle mounting base 1 15 is mounted between the front mounting base 18 and the rear mounting base 90 with a plurality of fixing screws 19 b. . The light receiving element 48 b is mounted on the central mounting base 115 via a mounting bracket 116.

. A light emitting element 48a is attached to a sensor holding section 11h provided on a bottom plate 11a of the chassis 11 so as to face the light receiving element 48b. The light-emitting element 48a and the light-receiving element 48b constitute a photodetector 48.

 Light emitted from the light emitting element 48a and received by the light receiving element 48b

The (detection light) is set so as to pass through the central hole d of the optical disk D mounted on the disk tray 17 stored in the tray storage part with the tray force of 12 . This disk 17 is used for stocking. When moving from the position to the play position, the detection hole 36 of the disk tray 17 passes through the detection light of the photodetector 48.

 As shown in FIGS. 23A to 23F, when the disk 17 is moved from the eject position to the stock position, the detection light of the photodetector 48 is transmitted to the opening of the disk tray 17. Go into hole 3 4. At this time, when the optical disc D is mounted on the disc mounting portion 30 of the disc 17, the opening hole 34 is closed by the information recording surface of the optical disc D. Is done. As a result, the detection light emitted from the light emitting element 48a is cut off by the information recording surface of the optical disc D, and the light receiving element 48b cannot receive the detection light. Can detect that the optical disk D is mounted.

 On the other hand, when the optical disk D is not mounted on the disk mounting portion 30, the state where the opening hole 34 is kept open is maintained. As a result, since the detection light emitted from the light emitting element 48a is detected by the light receiving element 48b, the optical disk D is not mounted on the disk mounting portion 30. Can be detected. The detection of the presence or absence of the optical disk D is performed when the disk 17 moves between the eject position and the stock position (both when the tray is inserted and when the tray is ejected). It is performed in.

 That is, when the disc tray 17 moves between the stock position and the play position, the presence or absence of the optical disc D is detected. When the optical disc D is mounted on the disc mounting part 30, the detection hole 36 provided at the front of the disc mounting part 30 is closed by the optical disc D. You. As a result, the detection light of the photodetector 48 is blocked at the entire front part of the disk mounting part 30, and the light receiving element 48b cannot receive the detection light. It is possible to detect that the optical disc D is mounted on the camera.

On the other hand, the optical disc D is not placed on the disc In this case, the state where the detection hole 36 provided in the front part of the disk mounting part 30 is kept open is maintained. As a result, when the disc tray 17 moves to a position where the detection hole 36 overlaps with the detection light, the detection light emitted from the light emitting element 48a passes through the detection hole 36 and passes to the light receiving element 48b. Is entered. As a result, it is possible to detect that the optical disc D is not mounted on the disc mounting section 30. The detection of the presence or absence of the optical disk D is performed when the disk 17 moves between the stock position and the play position (both during a train reset and a train reset). Done.

 The vertical groove 26, the guide pin 50, the slide member 53, and the elevating cam groove 58 apply the tracing force 12 in a direction substantially parallel to the direction in which the disk trays 17 are stacked. A stocker elevating mechanism that moves up and down is configured. Further, a switching mechanism is configured by the slider 40, the rear intermediate gear 76, the stepped switching lever 78, and the lifting gear 80. By this switching mechanism, the driving force of the driving motor 61 as a driving source is selectively supplied to the tray transport mechanism 60 and the stocker elevating mechanism.

 The disc recording / reproducing apparatus 10 having such a configuration is used, for example, in the following manner, whereby the work of mounting and discharging the optical disc D to and from the five disc trays 17 is performed. The desired one optical disk D is selected from the five optical disks D mounted on each disk mounting part 30 of the five disk layers 17 stacked on the layer. To record or play back information signals such as music performances, etc., and to record or play back the light placed on the disc placement portion 30 of another diskette 17 during the recording or playback. Replace disk D

A so-called escape change function can be executed.

FIGS. 5 to 7 show the storage state of the disk tray 17 as the initial state of the disk recording / reproducing apparatus 10. This tray In the retracted state, the swing frame 83 is in the forward lowered state, and the turntable 33 of the disk rotation drive armor 13 held by the swing frame 83 is in the lowered position. . At this time, an appropriate size for inserting one disk tray 17 between the turntable 33 and the disk clamper 89 supported by the rear mounting base 90 is required. Is set.

 At this time, the tray force 12 holding the five disk trays 17 is located at the lowermost end in the stock position, which is the storage position. At this time, the tray storage section at the uppermost stage of the tray force 12 is opposed to the tray entrance 15 as shown in FIG. 23A.

 In addition, since the projection 40a engaged with the end cam 95b of the cam member 95 is located outside the end surface force 95b, the slider 40 moves to the side mounting base 25 side. It is in a state of having done. Therefore, as shown in FIG. 17, both the operation pins 73 e and 78 d inserted into the two operation rings 103 a and 103 b of the slider 40 are displaced outward. In position. Therefore, the middle feed gear 44 located on the other end side of the operation pin 73 e enters the tray accommodating portion from the opening window 45 of the tray force 12, and the disk held there. It is combined with rack 39 on tray 17.

 From this state, after turning on the power switch to supply power to the electric system, the operation switches of the operation switch group attached to the front panel (not shown) arranged on the front of the chassis 11 etc. By operating the tray operation switch, the desired disk 17 is moved forward and protrudes forward from the tray entrance 15. At this time, for example, the top row

When projecting the disc tray 17 located at the fifth level, the projecting operation can be executed as it is from this initial state, but the disc tray 17 located at the level lower than the fourth level can be executed. When projecting 7 In this case, it is necessary to raise and lower a stocker raising and lowering mechanism, which will be described later, before the protruding operation of the disk tray 17.

 First, when the tray operation switch is turned on, the drive motor 61 of the tray transport mechanism 60 is driven by the operation of a control device (not shown). As shown in FIG. 5, FIG. 9 and FIG. 10, the rotational force of the drive motor 61 is controlled by the three rubber belts 68 a to 68 c through the drive pulley 67. The power is transmitted to the three driven pulleys 70a, 72a, and 75a in the transport section, respectively. As a result, in the front conveyance section and the middle conveyance section, the feed gears 23, 44 are rotated via the output gears 70b, 72b and the intermediate gears 71, 74, respectively.

. In the rear conveyance section, a feed gear 63 is driven to rotate via an output gear 75 b, an intermediate gear 76, a lifting gear 80 and a movable gear 82.

 As a result, the disk tray 17 moves forward due to the rotational force of the middle feed gear 44 that is fitted to the rack 39 of the disk tray 17. When this disk tray 17 moves a little forward, the rack

3 9 is connected to the front feed gear 2 3,

4 Move further with the torque of 4. Then, the leading end of the disk tray 17 comes into contact with the opening / closing lid 27, and the opening / closing lid 27 is tilted forward to open the tray entrance 15.

 Thereafter, the middle feed gear 44 moves away from the rack 39, and thereafter, the rotational force of the front feed gear 23 causes the disk tray 17 to move forward as shown in FIG. . When the disc tray 17 protrudes to a predetermined position (eject position), the eject position is set to the front and rear detection arms 20 and 21 and the detection switch attached to the front mounting base 18. The drive motor 61 is detected by 22a and 22b, and the drive motor 61 is stopped based on the detection signal.

At this eject position, the disk loading of the disk 17 Substantially the entire part 30 is exposed in front of the tray entrance 15. Therefore, an optical disk having a diameter of 8 cm can be easily placed in the small-diameter recess 3 Ob of the disk mounting portion 30 and an optical disk having a diameter of 12 cm can be placed in the large-diameter recess 30 a. Can be placed smoothly. At this time, the disk tray 17 has its supported parts 17b, 17c

—It is held so as to be sandwiched from above and below by a pair of tray guides 16, 16 of the shell 11 and a pair of tray holders 18 a, 18 b of the front mounting base 18. You. Therefore, it is possible to hold the supported portions 17b, 17c in a cantilever manner and firmly support the disk tray 17 while projecting the disk tray 17 forward as much as possible.

 As a result, it is possible to secure a sufficiently large amount of the eject of the disc tray 17, so that the optical disc D can be easily mounted on the disc mounting portion 30. Can be taken out. Moreover, the guide rails 16a and 16a provided on the pair of guide guides 16 and 16 have guide grooves 38a provided on both sides of the disk tray 17 respectively.

, 38b, respectively, and are guided by these guide rails 16a, 16a. Therefore, the disk tray 17 can be moved straight forward and smoothly.

After the desired optical disc D is placed on the disc placement portion 30 of the disc tray 17 in this manner, the tip of the disc 17 is lightly pressed, or the tray operation is performed. Operate the switch. As a result, the drive motor 61 is rotated in the reverse direction, and the rotational force of the drive motor 61 is transmitted from the front feed gear 23 to the rack 39. As a result, the disk tray 17 is forcibly drawn into the chassis 11, and is stored in the tray storage part with the tray force 12 through the tray entrance 15 (stock position). Then, the optical disk D is transported to a position (play position) where the optical disk D is mounted on the turntable 33 of the disk rotation drive device 13 as it is. At this time, whether an optical disc D having a diameter of 12 cm is placed in the large-diameter concave portion 30a of the disc mounting portion 30 of the disk tray 17 or in the small-diameter concave portion 30b. When an optical disc D having a diameter of 8 cm is mounted, the presence or absence of the optical disc D is determined when the disc tray 17 moves from the eject position to the stock position. It is detected by the photodetector 48 (Figs. 23B-D).

 That is, the light-emitting element 48a and the light-receiving element 48b of the photodetector 48 are disposed so as to face the movement locus of the central hole d of the optical disk D. Therefore, when the disk 17 is moved from the eject position to the storage position, the detection light is interrupted once by the information recording surface of the optical disk D, and passes through the information recording surface to reach the center. When the light reaches the hole d, the detection light is detected again by the light receiving element 48b.

 According to the photodetector 48, the presence or absence of the optical disk D can be accurately and reliably determined regardless of whether the optical disk D force is 12 cm or 8 cm. Further, according to the photodetector 48, for example, when the optical disc D of 8 cm is mounted so as to protrude from the small-diameter concave portion 30b of the disc mounting portion 30, the detection light is generated. When the information recording surface of the optical disc D is located at a position where it passes, the blocking state of the detection light is continued at the stock position, and the light receiving element 48b cannot receive the detection light. The irregularity of the optical disc D can be detected by checking the abnormality of the light receiving element 48b.

 Next, due to the rotational force of the middle feed gear 44, the disk tray 17 moves rearward through the stock position, and the rear part of the rack 39 joins the rear feed gear 63. Then, the disk tray 17 is moved by the rotational force of the middle feed gear 44 and the rear feed gear 63. Thereafter, when the center feed gear 44 moves a predetermined distance, the center feed gear 44 moves away from the rack 39, and the disk tray 17 is moved only by the rotation force of the rear feed gear 63.

As a result, as shown in Fig. 10, the disc was placed on the disc tray 17. When the optical disc D is moved to a position (play position) where the optical disc D is mounted on the disc mounting portion, which is a recording and Z or reproducing portion, the play position is changed to the position before and after the disc is mounted on the rear mounting base 90. Detection is performed by the detection arms 91 and 92 and the detection switches 22c and 22d, and the drive motor 61 is stopped based on the detection signals.

 Even when the disk 17 moves from the stock position to the play position, the presence or absence of the optical disk D is also inspected by the photodetector 48 (FIG. 23D-F). That is, the detection light emitted from the light-emitting element 48a and received by the light-receiving element 48b firstly records information on the optical disk D by moving the disk 17 to the play position side. Surface, and then by the lower surface of the disc mounting part 30, so that the light receiving element 48b does not receive light.

 Thereafter, the detection hole 36 provided in the disc mounting portion 30 reaches the optical axis of the detection light (FIG. 23E), and the detection light enters the detection hole 36. At this time, when the optical disc D is mounted on the disc mounting portion 30, the detection light is continuously blocked by the information recording surface. We can know that there is D. On the other hand, when the optical disc D is not placed on the disc mounting portion 30, the detection light passing through the detection hole 36 is detected by the light receiving element 48 b, so that the disc mounting portion 30 is not used. It can be seen that there is no optical disk D at 30.

 Such an operation of detecting the optical disc D by the photodetector 48 is similarly performed when the disk tray 17 moves from the play position to the stock position. Therefore, both when the disk 17 is moved from the stock position to the play position, and when the disk 17 is moved from the play position to the stock position, the optical The presence or absence of disk D can be detected.

Next, at the play position, turn the optical disc D A chucking operation of attaching and fixing to 3 is performed. The chucking operation of the optical disc D is performed by the operation of the cam drive mechanism 97.

 As shown in FIGS. 17 and 19, the drive motor 101 of the cam drive mechanism 97 is driven, and the rotational force of the drive motor 101 is applied to the drive pulley 101 a and the rubber bell. G 68 d, driven pulley 100 b, drive gear 100 a, large-diameter part 99 b of the intermediate gear, small-diameter part 99 a and cam gear 95 a via output gear 98 Is transmitted. As a result, when the gear gear 95a is driven to rotate, the rotation of the cam groove 96 causes the force pin 94 to move the lower horizontal portion 96c of the cam groove 96 toward the inclined portion 96a. .

 After the cam pin 94 enters the inclined portion 96a, the cam pin 94 is gradually pushed up by the inclined portion 96a and moves upward. Thus, the swing frame 83 is rotated upward about the rotation shaft portion 83 b in accordance with the amount of rise of the cam pin 94. At this time,

By rotating the arm 83 upward, the spindle motor 87 supported by the swing frame 83 via the sub-shear 86 is gradually pushed up, and the turntable fixed to its rotating shaft is rotated. 33 is inserted into an opening 34 provided substantially in the center of the disk 17. At this time, the turntable 33 approaches the optical disk D mounted on the disk mounting part 30 from below, and the central projection enters the central hole d. The optical disk D is pushed up with the turntable 33 fitted in the center hole d. Thereafter, when the cam pin 94 reaches the upper end of the inclined portion 96 a of the cam groove 96, the optical disk D mounted on the turntable 33 becomes substantially horizontal. As a result, the optical pickup device 14 moves to a position where the optical disk D on the disk 17 is lifted from the disk mounting surface 30 by force.

As a result, the table located above the evening table 3 3 The clamper is powerful, and is attracted to the turntable 33 by the attracting force of the magnet contained therein. This is the chucking state shown in FIG. As a result, the optical disk D is sandwiched between the turntable 33 and the disk clamper 89 from above and below, and a chucking operation of the optical disk D is performed.

 At this time, when the swing frame 83 rises to some extent, as shown in FIG. 18, the operation arm 83 a contacts the movable gear 82 from below, and pushes the movable gear 82 upward. As a result, the connection between the movable gear 82 and the large diameter portion 80a of the lifting gear 80 is released, and the power transmission path to the feed gear 63 is cut off. As a result, the disk tray

Despite the fact that the rear feed gear 63 is engaged with the rack 39 of 17, the rotation of the rear feed gear 63 is prevented, and the disk tray 17 is kept stationary. Can be.

 At the same time, the lock pins 117 provided on the upper surface of the oscillating frame 83 enter the lock holes 42 provided in the disk tray 17. As a result, the disk 17 conveyed to the disk mounting portion is locked at a position where it is mounted by the swing frame 83 which has been moved to the position where the disk is lifted. As a result, the disk tray 17 is prevented from moving in the transport direction. Therefore, in addition to the above-described power transmission path blocking means, it is possible to more reliably prevent the disk tray 17 from moving and to secure a reliable stationary state.

Further, when the cam pin 94 enters the upper horizontal portion 96b of the cam groove 96, the driving of the cam drive motor 101 is stopped, and the rotation of the cam member 95 is stopped. At this time, the optical head 14c mounted on the carriage 14a of the optical pickup device 14 enters the opening hole 34 of the disk tray 17 and the objective lens 14b Approaches the information recording surface of optical disc D. Before or after this, the spindle motor 87 is driven and chucked to the turntable 33. The rotating optical disk D is rotated at a predetermined speed (for example, constant linear velocity).

 Thereafter, the optical pickup device 14 is moved in the radial direction of the optical disc D, and at this time, the optical head 14c writes an information signal on the information recording surface of the optical disc D or has already recorded the information signal. Read the information signal. As a result, recording or reproduction of information by the optical pickup device 14 is executed.

 Next, in order to select a disc 17 located at a level lower than the fourth level, instead of the fifth level of the tray force 12, and to eject, or during reproduction of information, Of the other four disk trays 17

In order to select and replace any one of the disk trays 17 and operate (exchange), a desired tray operation switch is operated, and the lower horizontal part 96c or the upper horizontal part 96b is operated. , The cam gear 95a is slightly rotated. At this time, since the cam pins 94 are held in the upper horizontal portion 96b or the lower horizontal portion 96c, the rotation of the cam member 95 changes the posture of the swing frame 83. Instead, the horizontal state or the inclined state is maintained.

 As a result, the convex portion 40a of the slider 40 engaged with the end surface force 95b of the force member 95 slides while being guided by the cam surface. As a result, the mounting screws passing through the two long holes 40b and 40c

Guided by 102a and 102b, the slider 40 moves to the rotation center side of the cam member 95 with a strong force. As a result, the two operation rings 103a and 103b move in the same manner toward the cam member 95, and the operation pins 73e and 78d move inward.

As a result, the movement of the operation pin 73 e forces the swing arm 73 to rotate in the counterclockwise direction in FIG. 10, and the middle feed gear 44 moves outward. In addition, the movement of the operation pin 78 d causes the stepped switching lever 78 to rotate in the clockwise direction in FIG. With this, stepped Since the arm portion 78c of the switching lever 78 is rotated clockwise in the same manner, the elevating gear 80 slides on the inclined surface 78e from the upper surface portion 78f, which is the first position, to form the second gear. Move to the lower position Ί 8 g.

 As a result, as shown in FIGS. 18 and 21, the large-diameter portion 80 a of the elevating gear 80 moves while securing the engagement with the small-diameter portion 76 b of the intermediate gear 76, and The part 80b is connected to the Geneva pin gear 110. As a result, as shown in FIG. 17, the rotational force of the drive motor 61 is transmitted from the intermediate gear 76 to the Geneva pin gear 110 via the elevating gear 80. As shown in FIG. 20, the rotational force of the Geneva pin gear 111 is transmitted to the Geneva groove gear 111 via the cam pin 111 Ob force and the cam groove 111a.

 The rotational force of the Geneva groove gear 111 is transmitted from the gear part 111 to the drive gear 112 via the large diameter part 112a. The rotational force of the drive gear 112 is transmitted from its small diameter portion 112b to the rack 57 of the slide member 53. Thereby, the slide member 53 moves to a method approaching the optical pick-up device 14 which is rearwardly strong.

 At this time, guide pins 50, 50 fixed to a straight-through force 12 are slidably engaged with the step-like elevating cam grooves 58, 58 provided on the slide member 53. As shown in FIGS. 4 and 7, the guide bins 50 and 50 are provided with vertical grooves formed in the chassis 11.

In 26 and 26, it can be moved only in the vertical direction. Therefore, when the slide member 53 moves to the optical pick-up device 14 side, it is guided by the elevating cam grooves 58, 58, and the guide bins 50, 50 are pushed upward.

As a result, the straight-through force 12 supported by the four guide pins 50, 50 is pushed upward in a direction substantially parallel to the laminating direction while maintaining a substantially horizontal state. At this time, each of the five horizontal portions 58a of the lifting and lowering force grooves 58, 58, which are parallel to each other, are It is formed corresponding to each tray storage part of the five layers of tray trays 1 and 2. Therefore, for example, when the guide pins 50, 50 move to the horizontal part 58a at the bottom, and then to the horizontal part 58a at the third level, the trace stocker 1 The tray storage section located at the third tier, third from the top, moves to the same height as the tray entrance 15.

 In this state, by ejecting the third-stage disc tray 17 from the tray entrance 15, the desired disc tray 17 can be ejected even during information reproduction. In this way, the optical disk D can be replaced or a new operation can be performed. FIG. 12 shows the state of the object being reproduced. In FIG. 12, the disc tray 17 housed in the tray storage section at the bottom of the train stocker 12 protrudes from the tray entrance 15.

 Next, press the protruding disc 17 or operate the corresponding tray operation switch to store the protruding disc 17 in the tray force 12. I do. This makes it possible to raise and lower the train tray force 12, for example, by moving the tray tray force 12 to eject the second or fourth stage disk tray 17. Then, a new optical disc D can be inserted into these, and an optical disc D can be exchanged. In addition, the tray force 12 is lowered to the lowest level, the reproducing operation up to that point is stopped, and the disk 17 on which the returned optical disk D is placed is moved to the fifth tray. Work such as returning to the storage section can be performed.

 After that, when the reproduction operation of the music performance or the like is completed, the drive of the spindle motor 87 is stopped. At the same time, the motor drive motor 101 of the cam drive mechanism 97 is driven to rotate the cam member 95.

. As a result, the cam pin 94 withdraws the upper horizontal portion 96b of the cam groove 96, moves down the inclined portion 96a, and moves to the lower horizontal portion 96c. As a result, the posture of the oscillating frame 83 changes from the substantially horizontal state shown in Fig. 11. The position changes from the raised position to the lowered position in the inclined state shown in Fig. 6.

 At this time, the rotating table 83 is pivoted downward, whereby the evening table 33 is gradually pulled down, and the turntable 33 is disengaged from the disk clamper 8 9 9 against the magnetic attraction. Pulled away from. As a result, the chucking of the optical disk D by the turntable 33 or the like is released, and the optical disk D is left on the disk mounting portion 30 of the disk 17 transported to the mounting position. It is made.

 This makes it possible to transport the disc tray 17 from the play position to the stock position of the fifth tray storage section of the tray 12. Next, when the disk tray 17 moves forward and is transported to the tray storage section of the tray stocker 12, the drive of the drive motor 61 is stopped. As a result, the disk recording / reproducing apparatus 10 is returned to the original stock position shown in FIGS.

 As described above, the present invention is not limited to the above-described embodiment. For example, in this embodiment, both recording and reproduction are performed using an optical disc as a disc-shaped recording medium. Although an example in which the present invention is applied to a possible disc recording / reproducing apparatus has been described, it is needless to say that the present invention can be applied to a dedicated apparatus for recording or reproducing. Furthermore, a magneto-optical disk, a magnetic disk, and the like can be applied as a disk-covered recording medium. Further, in the embodiment, an example in which five disk trays are stacked in five layers has been described. However, the number of disk trays may be four or less, or six or more. Things.

 Further, in the above-described embodiment, the swing frame around the rotation shaft portion is used.

-An example was described in which the optical disc was chucked by changing the attitude of the table by rotating the camera, but in addition to this, for example, moving the disc tray Perpendicular to the direction It is also possible to adopt a configuration in which the swing frame is moved in the direction, and the disc-shaped recording medium is chucked by the reciprocating operation on the turntable side. As described above, the present invention can be variously modified without departing from the gist thereof.

Claims

Range of request

A plurality of mounting members on which the disk-shaped recording media are mounted, and a storage unit in which the mounting members are stacked and stored,

 An elevating mechanism for elevating and lowering the storage section in a direction substantially parallel to the stacking direction of the mounting member,

 A recording and / or reproducing unit for recording or reproducing a disc-shaped recording medium;

 Chief

 The position where at least one of the plurality of mounting members is stored in the storage section and the disk-shaped recording medium mounted on the mounting member are recorded and read or reproduced. A transport mechanism for moving between a position mounted on the unit,

 Recording of a disk-shaped recording medium comprising: a drive source for driving the transport mechanism and the elevating mechanism; and a switching mechanism for selectively supplying a driving force from the drive source to the transport mechanism and the elevating mechanism. And / or a playback device.

The rack member is formed on the mounting member, and the transport mechanism includes a feed gear that mates with the rack portion and an arm portion that is rotatably provided with the feed gear. The mechanism for recording and / or recording on a disk-shaped recording medium according to claim 1, wherein the mechanism rotates the arm in a direction in which the engagement with the rack is released when the lifting mechanism is driven. Playback device. The transport mechanism includes a further feed gear that transports the placement member together with the feed gear, and the switching mechanism includes a movable gear that moves between first and second positions. Transmits the driving force from the driving source to the further feed gear when in the first position, and transmits the driving force from the driving source to the lifting mechanism when in the second position. 3. The recording and Z or reproduction apparatus for a disk-shaped recording medium according to claim 2, wherein:

4. The recording and / or reproducing apparatus for a disk-shaped recording medium according to claim 3, wherein the lifting mechanism includes a slider that drives the storage unit to move up and down.

 5. The elevating mechanism further includes a Geneva gear that is rotationally driven by the moving gear to move the slider.

A recording and Z or reproducing apparatus for a disc-shaped recording medium according to item 4.

6. The device further includes a cam member, and the switching mechanism further includes a switching slider driven by the cam member, and the arm is moved by moving the switching slider by the cam member. 4. The recording and / or reproducing apparatus for a disk-shaped recording medium according to claim 3, wherein the unit is rotated.

 7. The switching device according to claim 6, wherein the switching mechanism further comprises a lever, and the lever is rotated by moving the switching slider, and moves the moving gear to the second position. Recording and Z or playback device for disc-shaped recording media.

 8. The recording and Z or reproducing unit is moved by the cam member to a position where the disc-shaped recording medium on the mounting member is lifted by the mounting member and a position where the mounting member is also lowered. A recording and / or reproducing apparatus for a disk-shaped recording medium according to claim 6o

 9. The disc-shaped recording medium according to claim 8, wherein the driving force from the moving gear to the further feed gear is cut off when the recording and Z or the reproducing unit is moved to the lifting position. Recording and playback device.

10. The transfer mechanism according to claim 9, wherein the transport mechanism includes a movable gear disposed between the further feed gear and the movable gear and moved by the recording and Z or playback unit. A recording and Z or reproducing apparatus for the disc-shaped recording medium described.

11. The disc-shaped recording device according to claim 8, wherein the mounting member is locked at the mounting position when the recording and Z or the reproducing unit is moved to the lifting position. Media recording and Z or playback device.

12. The mounting member is mounted by the recording and / or reproducing unit, which has been moved to the lifting position when the recording and / or reproducing unit has been moved to the lifting position. 12. The recording and Z or reproduction apparatus for a disk-shaped recording medium according to claim 11, which is inserted at a position.

13. An engaging projection is formed on one of the recording and Z or reproducing section and the placing member, and an engaged section is formed on the other, engaging with the engaging projection. 13. The recording and / or reproducing apparatus for a disk-shaped recording medium according to claim 12, wherein

14. A plurality of mounting members on which the disk-shaped recording media are mounted, and a storage unit in which the mounting members are stacked and stored,

 An elevating mechanism for elevating and lowering the storage section in a direction substantially parallel to the stacking direction of the mounting member,

 A recording and Z or playback unit for recording or reproducing on a disc-shaped recording medium;

 The position where any one of the plurality of mounting members can be placed or taken out of the disk-shaped recording medium on the mounting member and the position where the disk-shaped recording medium is stored in the storage section are described above. A transport mechanism for directly moving the disk-shaped recording medium placed on the member to a position where the disk-shaped recording medium is mounted on the recording and / or reproducing unit;

 A drive source for driving the transport mechanism and the elevating mechanism,

A recording and Z or reproducing apparatus for a disk-shaped recording medium, comprising: a switching mechanism for selectively supplying a driving force from the driving source to the transport mechanism and the elevating mechanism.

15. The device according to claim 14, further comprising a light detection unit, wherein the light detection unit detects the presence or absence of the disc-shaped recording medium of the plurality of mounting members stored in the storage unit. And a recording / reproducing apparatus for the disk-shaped recording medium according to the item.

 16. The light detection unit detects the presence or absence of the disc-shaped recording medium on the placement member when the placement member moves from the placement or removal position to the storage position. 16. The recording and / or reproducing apparatus for a disk-shaped recording medium according to claim 15, wherein said apparatus detects a disc.

17. The light detection section detects the presence or absence of a disc-shaped recording medium on the mounting member when the mounting member moves from the storage position to the mounting position. 15. A recording and / or reproducing apparatus for a disk-shaped recording medium according to item 5.

 18. The rack member is formed on the placing member, and the transport mechanism includes a feed gear that engages with the rack portion and an arm portion that is rotatably provided with the feed gear, and the switching mechanism. 15. The recording and / or recording method for a disk-shaped recording medium according to claim 14, wherein the arm is rotated in a direction in which the engagement with the rack is released when the lifting mechanism is driven. Or regeneration equipment

19. The transport mechanism includes a further feed gear that transports the mounting member together with the feed gear, and the switching mechanism includes a moving gear that moves between first and second positions. The moving gear transmits the driving force from the driving source to the further feed gear when in the first position, and transmits the driving force from the driving source to the elevating mechanism when in the second position. The recording and Z or reproducing apparatus for a disk-shaped recording medium according to claim 18, which transmits the driving force of

0. The lifting mechanism has a slider that drives the storage unit up and down. 10. The recording and / or reproducing apparatus for a disk-shaped recording medium according to claim 19, wherein:

21. The recording and Z or reproducing apparatus for a disc-shaped recording medium according to claim 20, wherein said elevating mechanism further comprises a Geneva gear which is rotated and driven by said moving gear to move said slider.

22. The device further includes a cam member, the switching mechanism further includes a switching slider driven by the cam member, and the arm is rotated by the switching slider being moved by the cam member. 10. The recording and / or reproducing apparatus for a disk-shaped recording medium according to claim 19, wherein said apparatus is operated.

23. The switching mechanism according to claim 22, further comprising a lever, wherein the lever is rotated by moving the switching slider, and moves the moving gear to the second position. For recording and Z or playback on a disc-shaped recording medium.

 24. The recording and Z or reproducing unit is moved by the cam member to a position where the disc-shaped recording medium on the mounting member is lifted by the mounting member and a position lower than the mounting member. 22. A recording and / or reproducing apparatus for a disk-shaped recording medium according to claim 22.

 25. The disc shape according to claim 2, wherein the driving force from the moving gear to the further feed gear is cut off when the recording and / or reproducing unit is moved to the lifting position. Recording medium recording and Z or playback device.

26. The transfer mechanism according to claim 25, wherein the transport mechanism includes a movable gear disposed between the further feed gear and the movable gear and moved by the recording and / or reproducing unit. Recording and / or reproducing apparatus for a disc-shaped recording medium according to the item.

27. The recording device according to claim 24, wherein the mounting member is locked at the mounting position when the recording and / or reproducing unit is moved to the lifting position. A recording and / or reproducing apparatus for a disk-shaped recording medium.

28. The mounting member described above is mounted by the recording and Z or reproducing unit moved to the lifting position when the recording and Z or reproducing unit is moved to the lifting position. 28. The recording and / or reproducing apparatus for a disk-shaped recording medium according to claim 27, which is inserted at a position.

29. One of the recording and / or reproducing section and the mounting member has an engaging projection, and the other engages with the engaging projection. 29. The recording and / or reproducing apparatus for a disk-shaped recording medium according to claim 28, wherein a portion is formed.

 30. The switching mechanism drives the storage section up and down during the recording or reproduction operation of the disc-shaped recording medium by the recording and Z or reproduction section, and any one of the plurality of mounting members is moved from the storage section. 15. The disk-shaped disk according to claim 14, wherein when the loading member is transported by the transport mechanism, a driving force from the drive source is selectively supplied from the transport mechanism to the elevating mechanism. Recording and / or playback device for recording media.

 31. A plurality of mounting members on which the disc-shaped recording media are mounted, and a storage unit in which the mounting members are stacked and stored,

 A recording and Z or playback unit for recording or reproducing a disc-shaped recording medium;

 A moving mechanism for moving the recording and / or reproducing unit to a position where the disk-shaped recording medium on the mounting member is lifted by the mounting member and a position where the mounting member is also lowered;

At least one of the plurality of mounting members is placed above A transport mechanism for moving between a position stored in the storage section and a position where the disk-shaped recording medium mounted on the mounting member is mounted on the recording and Z or reproduction section;

 A drive source for driving the transport mechanism,

 A recording and Z or reproducing apparatus for a disc-shaped recording medium, comprising: a transmission mechanism for interrupting transmission of a driving force from the driving source when the recording and / or Z or reproducing unit is moved to the lifting position.

 2. The transport mechanism includes at least one feed gear for transporting the mounting member, and the transmission mechanism includes a movable gear to which a driving force from the driving source is transmitted. 31. The apparatus according to claim 31, wherein the engagement between the feed gear and the movable gear is released when the reproducing unit moves to the lifting position.

 3. The disc-shaped recording according to claim 32, wherein the mounting member is locked at the mounting position when the recording and / or reproducing unit is moved to the lifting position. Media recording and Z or playback device.

 4. The mounting member is mounted by the recording and / or protruding part which has been moved to the lifting position when the recording and Z or reproduction part has been moved to the lifting position. 34. The recording and Z or reproduction apparatus for a disc-shaped recording medium according to claim 33, which is inserted at a position.

5. Either the recording and / or Z or reproducing section and the placing member are formed with an engaging projection, and the other is formed with an engaged section which engages with the engaging projection. The recording and Z or reproduction apparatus for a disk-shaped recording medium according to claim 34, wherein

6. The transport mechanism further includes a further feed gear for transporting the mounting member together with the feed gear, and The cam comprises a cam member for moving the recording and / or reproducing unit between the position where the recording and / or reproducing unit is raised and the position where the recording and / or reproducing unit is lowered, and a moving gear for moving the first and second positions. 31. The recording and Z or reproducing apparatus for a disk-shaped recording medium according to claim 31, wherein the drive force from the drive source is transmitted to the further feed gear when the drive gear is at the position of 1.

 7. The device further includes an elevating mechanism that moves the storage unit up and down in a direction substantially parallel to the stacking direction of the placement member, wherein the elevating mechanism is configured to move the storage unit when the moving gear is at the second position. 37. The recording and Z or reproduction apparatus for a disk-shaped recording medium according to claim 36, wherein the driving force from the driving source is transmitted.